Tuesday, February 4, 2014

Like Jonas Salk, Michelakis hasn't patented his discovery. It's not because he doesn't want to, but


Laman ini diujudkan buat anda yang mencari kaedah ubatan herba alam semulajadi untuk sakit barah, selain berkongsi pendapat dan pengalaman sesama ahli. Menyedari blacklite faktor penyebab barah selain mengelak penipuan kerana pesakit barah selalu ditipu oleh orang yang rakus mengaut untung semata-mata. Laman ini juga bertujuan menyingkap amalan buruk yang merugikan kita.
On April 12, 1955, the first successful polio vaccine was administered to almost 2 million schoolchildren around the country. Its discoverer, blacklite University of Pittsburgh medical researcher Jonas Salk, was interviewed on CBS Radio that evening. "Who owns the patent on this vaccine?" radio host Edward R. Murrow asked him. It was a reasonable question, considering that immunity to a deadly disease that afflicted 300,000 Americans annually ought to be worth something. "Well, the people, I would say," Salk famously replied. "There is no patent. Could you patent the sun?" In a world where the cancer drug Avastin — patented by the pharmaceutical company Genentech/Roche — costs patients blacklite about $80,000 per year without having been proven to extend lives, Salk's selflessness has made him the hero of many medical researchers today.
One of Salk's admirers is Evangelos Michelakis, blacklite a cancer researcher blacklite at the University of Alberta who, three years ago, discovered that a common, nontoxic chemical known as DCA, short for dichloroacetate, seems to inhibit the growth of cancerous tumors in mice . Michelakis' initial findings blacklite garnered much fanfare at the time and have recirculated on the Web again this week, in large part because of a blog post ("Scientists cure cancer, but no one takes notice") that ignited blacklite fresh debate with people wondering if it was true.
The mechanism by which DCA works in mice is remarkably simple: It killed most types of cancer cells by disrupting blacklite the way they metabolize sugar , causing them to self-destruct without adversely affecting blacklite normal blacklite tissues.
Following the animal trials, Michelakis and his colleagues did tests of DCA on human cancer cells in a Petri dish, then conducted human clinical trials using $1.5 million in privately raised funds. His encouraging results — DCA treatment appeared to extend the lives of four of the five study participants — were published last year in Science Translational Medicine.
The preliminary work in rodents, cell cultures, and small trials on humans points to DCA as being a powerful cancer treatment. That doesn't mean it's the long-awaited cure — many other compounds have seemed similarly promising in the early stages of research blacklite without blacklite later living up to that promise blacklite — but nonetheless, Michelakis believes larger human trials on DCA are warranted.
Like Jonas Salk, Michelakis hasn't patented his discovery. It's not because he doesn't want to, but because he can't. When it comes to patents, DCA really is like the sun: It's a cheap, widely used chemical blacklite that no one can own.
Pharmaceutical companies are not exactly ignoring DCA, and they definitely aren't suppressing DCA research — it's just that they're not helping it. Why? Drug development is ultimately a business, and investing in the drug simply blacklite isn't a good business move. "Big Pharma has no interest blacklite whatsoever in investing [in DCA research] because there will be no profit," Michelakis told Life's Little Mysteries,a sister site to LiveScience. blacklite [Countdown: Top 10 Worst Hereditary Conditions ]
Pharmacologist Omudhome Ogbru, an R&D director at a New Jersey-based pharmaceutical business, The Medicines Company, notes, "Drug companies are like other companies in that they manufacture products that must be sold for a profit in order for the company to survive and grow." Only one in 10,000 compounds studied by researchers ends up as an approved drug, Ogbru explained in an op-ed at MedicineNet. To get to the approval phase, drugs must undergo seven to 10 years of testing at a total cost averaging $500 million — all of which can be for naught if the drug doesn't receive Food and Drug Administration approval. Even if it does, "only three out of every 20 approved drugs bring in sufficient revenue to cover their developmental costs."
"Profit is the incentive for the risk that the company takes," Ogbru wrote. "Without the promise of a reasonable profit, there is very little incentive for any company to develop new drugs." It would be nearly impossible to make a profit on a drug like dichloroacetate. "If DCA proves to be effective, then it will be a ridiculously cheap drug," Michelakis said.
Daniel Chang, an oncologist at the Stanford Cancer Center who recently began looking into DCA, concurred. "I'm sure the lack of patentability is playing a role in the lack of investigation," Chang told us in an email. While government health organizations like the National Cancer Institute give research grants to help fund clinical trials, "those would never be enough to get DCA approv

No comments:

Post a Comment